Shells on Garter-stitch Background

Here's what it looks like from behind

Material Used
Yarn: Katia baby.
Needle Size: 2.25mm.

Abbreviations
- K, P: Knit, purl.
- P2tog: Purl 2 sts together: P2tog.
- P2tog tbl: Purl 2 sts together through the back loop
- Shell stitch: Insert right-hand needle into the front of the stitch 5 rows below the 3rd stitch on the left hand needle, and draw through a long loop; slip this loop onto the right-hand needle, then knit the next stitch) 6 times, taking all 6 loops from the same stitch below.